The amount of XP loss is absurd!!!

So I'm LVL 71 and I had 2 sections filled on my bar and died in a map. After that, I had only 1 section left and a small portion of the second one. How on earth is that 15%??? I lost almost 50% of what I had. That's not right. It's also that you lose more XP in a map if you die than what you get from completing it. That's just ridiculous. And it's not just on Atlas maps either. If you haven't done your 3rd or 4th trial by the time you finished the campaign, you'll also lose XP on failing those!!! I mean wth GGG??? We're trying to get stronger so we can take on the heavier enemies to get better gear but that's never gonna happen if you a) play solo and don't get carried, b) don't spend all your resources on top gear or c) you play your own build and not just copy a meta. Is that really the aim??? At least make it so that you don't lose XP on a filled section so you can aim for one section at the time (imagine the tension) or reduce/remove the XP penalty completely please. Surely I'm not the only with this problem or am I just getting old and unreasonable here 😂?!?